-9(10)-10y=90

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Solution for -9(10)-10y=90 equation: 


Simplifying
-9(10) + -10y = 90

Multiply -9 * 10
-90 + -10y = 90

Solving
-90 + -10y = 90

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '90' to each side of the equation.
-90 + 90 + -10y = 90 + 90

Combine like terms: -90 + 90 = 0
0 + -10y = 90 + 90
-10y = 90 + 90

Combine like terms: 90 + 90 = 180
-10y = 180

Divide each side by '-10'.
y = -18

Simplifying
y = -18

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